I decide to do my cell analogy in the grocery store, because it has so many things in it. I can see how all the items in the grocery store work together to be able to get things done like it the cell, and every job is important. The building of the grocery store is like the cell membrane, because it gives it structure and keeps everything inside safe. The security guard of the front door in the grocery store is like the cell membrane, because it says what can come in and out of the cell. The boss of the store is like the nucleus, because they tell the employes what to do and what needs to be done. The floors of the grocery store is like the cytoplasm, because it hold everything in it place, where it need to be. The illes in the store is
The cell membrane is a structure that controls what enters and leaves the cell. In a basketball stadium, the security guards are like the cell membrane. They can say who comes in if they don’t cause any problems and are following the rules and they can reject them and make them leave if they have something they aren’t supposed to or they are doing something wrong. This is how security guards are like a plant cell’s cell membrane because the security guards control what enters and leaves the stadium like the membrane controls what enters and leaves the cell.
Lewis Thomas, in his book The Lives of a Cell: Notes of a Biology Watcher, criticizes how society exists within a paradoxical
The Lives of a Cell: Notes of a Biology Watcher by Lewis Thomas consists of short, insightful essays that offer the reader a different perspective on the world and on ourselves.
1)"Big Idea 2: Cellular Processes: Energy and Communication." AP Biology Investigative Labs: An Inquiry-based Approach. Ed. The College Board. New York: College Board, 2012. 51-61. Print.
to construct and or maintain the cell membrane. In a microscopic view of the cell membrane we can
parts, and each part has its own job. The nucleus of a cell is very similar
Tyson, James L. "The rise of a cellblock work force." Christian Science Monitor 12 July 1999.
There are two main types of cells in the world. The simplest cells such as bacteria are known as Prokaryotic cells, and human cells are known as Eukaryotic cells. The main difference between each of these cells is that a eukaryotic cell has a nucleus and a membrane bound section in which the cell holds the main DNA which are building blocks of life.
8. Becker W. M, Hardin J, Kleinsmith L.J an Bertoni G (2010) Becker’s World of the Cell, 8th edition, San Francisco, Pearson Education Inc- Accessed 23/11/2013.
A cell is the smallest functioning unit in an organism, is usually has one or more nuclei that’s surrounded by cytoplasm and all together it’s covered by a membrane. The membrane that surrounds the cytoplasm where substances can pass in and out of the cell making the cell membrane semi-permeable because that’s when only certain small molecules are able to pass through. Molecules can get across the cell many different ways; one way is through diffusion which is when the net movement of a substance will go down in concentration and will continue to go down until it reaches a dynamic equilibrium. A way that water can get across the cell membrane is through osmosis which is the diffusion of water across a semi-permeable membrane.
Cells are able to grow and reproduce. Cells reproduce by splitting and passing on their genes (hereditary information) to Daughter cells. The nucleus always divides before the rest of the cell divides. Therefore each daughter cell contains their own nucleus. The nucleus controls the cells activities through the genetic material DNA. The cells in a body are all the same except the gametes they were all made from one cell, the Zygote. This is the cell that was formed when two gametes from your parents fused.
The Animal Cell is a little bit different than the Plant Cell for only a couple of reasons. One is how the Plant Cell has a cell wall and the Animal Cell doesn’t. The cell wall protects and gives structure to the cell. Then there is the Nucleus, which serves as a control center for the cell. Inside the Nucleus there are one or more Nucleoli. They are dense, granular bodies that disappear at the beginning of cell division and reappear at the end. Then you have the Cytoplasm. This is the watery material lying within the cell between the cell membrane and the nucleus. The Cytoplasm also contains organelles, which have specific functions in the cell metabolism. Then there are the Golgi Bodies, which serve as processing, packaging, and storage for the cell. These organelles package and ship things out. Another parts of the cell, a very important one in fact, are the Lysosomes. These organelles are used to break things down and contain enzymes.
In this cell though, the nucleus was not present. The plant cells and animal cells were very different. In the plant cells there was motion of cell parts but in the animal cells there was no motion. Also, the nucleus and chloroplast of the plant cell were towards the outside of the cell because the chloroplast can receive sunlight better on the outside of the cell than on the inside. In the animal cells though, the nucleus and cell organelles, were towards the middle of the cell.
This report provides an insight into the differences in the structure of cells and the way that they carry out their internal mechanisms. Cells form the basis of all living things and they are the smallest single unit of life. Cell biology is the study of cells and how they function, from the subcellular processes which keep them functioning, to the
They also grow faster then they can replicate their DNA. Microorganism have many layers. The cell wall, which is made of peptidoglycan gives each species its different shape. From the inside of the cell to the outside there is the inner membrane; also known as the plasma membrane.Next, comes the cell wall. Finally, there is the outer membrane and envelope. The microorganism’s shape is determined on the envelope (Properties of Microbes)